In just a few short years, Katie Holmes went from girl-next-door Joey Potter to Hollywood superstar mom. In honor of her 32nd birthday on December 18, take a look back with InStyle at her style transformation.

Katie Holmes, Hairstyles

"When fame happens," Katie Holmes has said, "a lot of people think you're changing.” Well, who can blame them? In just a few short years, the 31-year-old went from girl-next-door Joey Potter to Hollywood superstar mom. She even chopped off her signature long locks in favor of a Suri-friendly angled bob. Still, even with an ever-changing mane, she hasn't altered her pretty, polished style.

1997: The pretty senior at Toledo's Notre Dame Academy had big dreams: "For some reason I thought it would be possible to be an actress, even though I was from Ohio."